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Measuring principle

In RTD resistance sensors the electrical resistance changes with a change in temperature. They are suitable for the measurement of temperatures between -200 ¡ãC and approx. 800 ¡ãC and stand out due to high measurement accuracy and long-term stability.
The resistance sensor element most frequently used is a Pt100 which has a nominal value of 100 ¦¸ at 0 ¡ãC. Pt100 sensors are manufactured in different formats:
.wire wound ceramic sensors: A spiral of platinum wire is wound and embedded in ceramic powder within a capillary and is fed to the outside by platinum wires.
.Thin film sensors: A platinum layer is vaporized on a ceramic plate (sputtered). A glass layer is melted on in order to protect the connection wires and the platinum layer.

Application guidelines
The RTD are widely used in science and industry; applications include temperature measurement for kilns, gas turbine exhaust, diesel engines, and other industrial processes. Thermocouples are also used in homes, offices and businesses as the temperature sensors in thermostats, and also as flame sensors in safety devices for gas-powered major appliances.


Product list
  • The UE thermal resistance Thermal resistance mostly made ​​from pure metals, the most widely used platinum and copper, nickel, manganese, and rhodium materials thermal resistance has now begun. Installation of industrial thermal resistance at the production site, and there is a certain distance between the control room, so the thermal resistance of the leads have a greater impact on the measurement results.

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